LP38513 datasheet(5/25 Pages) TI1

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LP38513

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SNVS361E – JULY 2007 – REVISED NOVEMBER 2015

6.5 Electrical Characteristics

Unless otherwise specified: VIN = 2.5 V, IOUT = 10 mA, CIN = 10 µF, COUT = 10 µF, VEN = 2 V, and limits apply for TJ = 25°C.

Minimum and Maximum limits are specified through test, design, or statistical correlation. Typical values represent the most

likely parametric norm at TJ = 25°C, and are provided for reference purposes only.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

2.25 V

≤ VIN ≤ 5.5 V

–1.6%

1.6%

10 mA

≤ IOUT ≤ 3 A

2.25 V

≤ VIN ≤ 5.5 V

10 mA

≤ IOUT ≤ 3 A

–4.1%

2.6%

VOUT

Output voltage tolerance(1)

TJ = –40°C to +125°C

2.25V

≤ VIN ≤ 5.5V

10 mA

≤ IOUT ≤ 3A

–2.6%

2.6%

0°C

≤ TJ ≤ 125°C

2.25 V

≤ VIN ≤ 5.5 V

0.03

Output voltage line

ΔVOUT/ΔVIN

%/V

2.25 V

≤ VIN ≤ 5.5 V

regulation(1)(2)

0.06

TJ = –40°C to +125°C

10 mA

≤ IOUT ≤ 3 A

0.1

Output voltage load

ΔVOUT/ΔIOUT

%/A

10 mA

≤ IOUT ≤ 3 A

regulation(1)(3)

0.2

TJ = –40°C to +125°C

VDO

Dropout voltage(4)

IOUT = 3 A, TJ = –40°C to +125°C

425

IOUT = 10 mA, ERROR pin = GND

TJ = –40°C to +125°C

Ground pin current, output

enabled

IOUT = 3 A, ERROR pin = GND

IGND

IOUT = 3 A, ERROR pin = GND

TJ = –40°C to +125°C

VEN = 0.5 V, ERROR pin = GND

100

Ground pin current, output

µA

VEN = 0.5 V, ERROR pin = GND

disabled

110

TJ = –40°C to +125°C

ISC

Short-circuit current

VOUT = 0 V

5.6

ENABLE INPUT

VEN rising from 0 V until the output

turns to an ON state, or VEN falling

0.74

0.85

0.92

from

≥ 2 V until the output turns to an

OFF state

VEN(TH)

Enable on/off threshold

VEN rising from 0 V until the output

turns to an ON state, or VEN falling

from

≥ 2 V until the output turns to an

0.56

OFF state

TJ = –40°C to +125°C

Time from VEN < VEN(TH) to VOUT =

td(OFF)

Turnoff delay

OFF, ILOAD = 3 A

µs

Time from VEN >VEN(TH) to VOUT = ON,

td(ON)

Turnon delay

ILOAD = 3 A

VEN = VIN

IEN

EN pin current

VEN = 0 V

–1

(1)

The line and load regulation specification contains only the typical number. However, the limits for line and load regulation are included

in the output voltage tolerance specification.

(2)

Output voltage line regulation is defined as the change in output voltage from the nominal value due to change in the voltage at the

input.

(3)

Output voltage load regulation is defined as the change in output voltage from the nominal value due to change in the load current at the

output.

(4)

Dropout voltage (VDO) is typically defined as the input to output voltage differential (VIN – VOUT) where the input voltage is low enough to

cause the output voltage to drop 2% from the nominal value. For the LP38513, the minimum operating voltage of 2.25 V is the limiting

factor, and the maximum dropout voltage is defined as: VDO(MAX) = VIN(MIN) – VOUT(MIN) = (2.25 V – (1.8 V × 95.9%) = 524 mV).

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